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never [62]
3 years ago
14

HELP ASAP!!! WILL MARK BRAINLIEST

Mathematics
1 answer:
Nitella [24]3 years ago
5 0

Answer:

  • 50x⁴ - 20x² + 1 = 0

1. <u>Quadratic form</u>

  • 50(x²)² - 20x² + 1 = 0

2. <u>U is</u>

  • x² = u

3. <u>U- substitution</u>

  • 50u² - 20u + 1 = 0

4. <u>Find the discriminant and identify roots</u>

  • d = (-20)² - 4*1*50 = 200
  • u = (20 ± √200)/100
  • u = (2 ± √2)/10

<u>Solve for x</u>

  • x² = (2 ± √2)/10
  • x = ± √((2 ± √2)/10), four roots
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Can someone help me please.
zhannawk [14.2K]

Answer:

  1. Lena's Method: 280
  2. Jackson's Method: 280

Step-by-step explanation:

Lena's Method:

  1. 8 + 12 = 20
  2. Plug 20 in: 14(20)
  3. 14(20) = 14 × 20 = 280

Jackson's Method:

  1. 14 × 8 = 112
  2. 14 × 12 = 168
  3. Re-write the expression: 112 + 168
  4. 112 + 168 = 280

I hope this helps!

8 0
3 years ago
Haley and Nicole stopped at the school bookstore for extra supplies. Haley
nata0808 [166]

Answer:

Step-by-step explanation:

8p+3f=10.39

5p+4f=10.51

subtract

3p-f=-0.12

f=3p+0.12

8p+3(3p+0.12)=10.39

17p=10.39-0.36

17p=10.03

p=10.03/17=0.59

f=3×0.59+0.12=1.77+0.12=1.89 $

or 40 p+15f-40p-32f=51.95-84.08

-17f=-32.13

f=1.89 $

7 0
3 years ago
3.7m∧5÷3.7m∧2 How do I complete this expression?
hjlf

The average ocean depth is 3.7 × 103 m, and the area of the oceans is 3.6 × 1014 m2. What is the total volume of the ocean in liters? (One cubic meter contains 1000 liters. Round your answer to one decimal place.)

8 0
3 years ago
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State whether the given measurements determine zero, one, or two triangles.
Lady bird [3.3K]
I bet you're doing the Law of Sines right now. If you use the law of sines you find out that angle A is a 90 degree angle. There is only one triangle you can make with these measurements because if you have one angle of 30 and another of 90, the 3rd angle has to be a 60 degree angle. So it is a special right triangle, 30-60-90
8 0
3 years ago
JOSIE HAS 43 ANIMAL BOOKS AND 29 ART BOOKS . SHE PUTS ALL THE BOOKS ON 8 SHELVES . SHE PUTS THE SAME NUMBER OF BOOKS ON EACH SHE
zepelin [54]

Answer:

9 books on each shelf

Step-by-step explanation:

43 + 29 = 72 books total

72/8 = 9 books per shelf

7 0
2 years ago
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